Hi I was parked up in my camper van with my mate drinking . We were sitting at front seats listening to music . We decided that I should turn on ignition to charge up my diesel heating for 10 mins . As it was cold . Then turn of ignition to head to sleep . I Lost track of time a little with ignition on & police knocked door . They told me you should not have ignition on while alcohol in system. I told them I was only heating my camper , to go to bed . Wasn’t planning to drive it . My camper wasn’t in gear . Handbrake on . No seatbelt on . My mates car was in front of camper . No plans to attempt to drive it . My mate is a witness too . They told me to go to station . Took a breath test & just failed over the limit . Going to court in 3 weeks . I have a solicitor. Pleading not guilty . What’s the chances of losing my license or, getting a fine & points . I have no convictions or no points on my license. Very worried. As don’t want to sell my camper van that I self built & lose work & more . I live in Glasgow & this happened in drymen, Stirling. Thank you ..