I've never had any problems with immigration. Just show up with all the required documents in order.
From what I glean on here is that problems occur when people either don't or won't understand what documents and conditions are needed.
Knowing that you have dropped the bike when going backwards downhill and just discovering on another forum that ABS also works when going backwards, would it help you by pulling the ABS fuse and deactivating the ABS????
Motorbikes are supposed to ride in the left lane. The shoulder is not a lane and is usually delineated with a solid (no cross) line except at junction where the line is broken.
I think a bribe is given before the fact to guarantee a result. Tea money on the other hand is a gift.
The OP should leave such things to his wife. What is the point of being married to a local if they can't sort out local issues.