A motorway closure causes an unavoidable delay near the end of a driver's legal driving time. What is the correct use of the unforeseen-events provision?

1. Depart from the limits only as far as necessary to reach a suitable stopping place, if road safety is not jeopardised, and record the reason
2. Ignore all driving limits for the rest of the week
3. Drive to the customer even if a safe parking area is available earlier
4. Change the tachograph to break while continuing to drive