1. It's never happened to me, but it's hella funny watching others stuck in that wall
2. I think there's no need to test shit. This is something some players don't even have idea about and leads to misunderstandings. As Lithium said, that bomb (when the garage doors close) is the _SINGLEPLAYER_ bomb, the same you can acquire in Los Santos, in 8Ball's shop. As you might have noticed, this shop (called Welding & Weddings) also had the same function, and you can get one of those bombs in _ANY_ vehicle, not just the RC Barons, since SA:MP loads that singleplayer function as well (or rather, didn't disable it). For those who didn't play singleplayer, the bomb is timer-based, and explodes after x seconds, but it's not synced in SAMP. It's simple to realize you've accidentally one of these: once you have selected your bomb in the menu, you'll notice that after your car has spawned some meters away from the carbomb
it appears frozen for a few seconds: THAT indicates you acquired both bombs (or only the singleplayer one if you cancel), so, do not press the NOS or primary shoot-from-car button, which are the same, because if you do and you get a lightblue showmessage-like text saying "BOMB ACTIVATED" in the center of your screen, you should either jump from the vehicle and run away, or get to your objective quickly, because this bomb cannot be stopped. <- That if you successfully bought the LVP added carbomb, because if you only bought the singleplayer one, stop wasting your time: it'll only hurt you. Simple as :7
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