It doesn't matter if you wiped off the alcohol. Alcohol molecules will generally stick to surfaces such as glass or plastic for up to 24 hours before they are actually evaporated. In your case, the alcohol could be interfering with the spray tint.
when i used clear coat, it ended up making the tint look hazey so i re-did it and it ended up fine w/o the clear. jus depends on ur luck i guess...