https://www.gov.uk/foreign-travel-advice/egypt

The relevant paragraph appears to be

The local authorities in South Sinai have temporarily placed restrictions on vehicles leaving towns between dawn and dusk. Contact your travel company if you have an airport transfer during this period.

This won't affect people who are arriving at Sharm airport and staying in the various different areas of Sharm but it could affect those who are going to Dahab or Nuweiba I would think, and anyone transferring from Sharm to Taba or Taba Heights however the later would hopefully be flying into Taba Airport.

Doe :sun2